Masd. veitchiana 'Prince de Galle' x Masd. princeps
Masd. Maui Prince (Masd. tonduzil x Masd. princeps)
These are not in the tank, but up in my south window box. While these have nothing to do with growing and blooming orchids in the tank, I think they are beautiful, none-the-less. These are considered "warm-tolerant" Masd. (Masdevallia are in the Pleurothallis association and generally require cool temperatures for growth.) The Masd. I grow are mostly tolerant of temps up to the low 80s (F).